内螺纹强化管,inner-grooved tube
1)inner-grooved tube内螺纹强化管
1.By using of the single tube laboratory for R22, tests and compares the evaporation and condensation heat transfer performance with different tooth profile parameters of inner-grooved tube.利用R22单管传热试验台,对相同工况下不同结构参数的内螺纹强化管进行蒸发冷凝换热试验。
英文短句/例句

1.Evaporation heat transfer in smooth and internal grooved tubes;水平光管和内螺纹强化管内换热性能的研究
2.internal ribbed tube内肋片管,内螺纹管
3.NPSI (American Standard Internal Straight Pipe Threads)美国标准内直管螺纹
4.reducing extension piece异径内外螺纹管接头
5.Experimental Research on Strength Heat Transfer of Vertical Spiral Steel Tube Under the Condition of Condensation;凝结条件下垂直螺纹钢管强化传热的试验研究
6.Situation of technological develop ment of welding internal -thread cop per tubes and seamless internal -thread coppertubes at home and abroad国内外焊接内螺纹铜管与无缝内螺纹铜管的技术发展状况
7.external and internal thread grinding machine外螺纹及内螺纹磨床
8.pin-to-box pipe阳螺纹-阳螺纹管子
9.Tubing thread is available for API tubing threads and TM threads.油管螺纹可采用API油管螺纹,或TM螺纹。
10.Manufacture of Optimum Cold-drawn Internal-spiral Seamless Steel Tube for Ultra-supercritical Boiler Service超超临界锅炉用优化内螺纹冷拔无缝钢管的生产
11.carbide tool shank for petroleum pipe internal threading石油管内螺纹硬质合金刀杆
12.Three dimensional FE simulation of ball spinning of inner grooved copper tubes内螺纹铜管滚珠旋压三维有限元模拟
13.Ivestigation on Flow Boiling Heat Transfer Characteristics of R290 and R404A in Horizontal Microfin Tube;R290与R404A内螺纹管中沸腾换热研究
14.Study on Algorithm of CAT for Joint Internal Thread;管接箍内螺纹CAT系统计算方法的研究
15.Inside Weld Crack Analysis and Control of SSAW Pipe螺旋埋弧焊管内焊缝裂纹分析与控制
16.FE simulation on the ball spinning forming of inner grooved copper pipe内螺纹铜管滚珠旋压成形有限元模拟
17.The results of experiments showed that spirally fluted titanium-tube are better choice on heat transfer enhancement for the miniaturization of naval steam condensers.实验结果表明,钛螺纹槽管是实现冷凝器小型化较为理想的强化管管型。
18.NPT tapered tube thread gaugesNPT锥管螺纹量规
相关短句/例句

optimized ribbed tubing优化内螺纹管
1.Application of optimized ribbed tubing in the design of low mass flux once-through boiler;优化内螺纹管在低质量流速直流锅炉设计中的应用
3)Optimum internal-spiral steel pipe优化内螺纹钢管
4)rifled tubes内螺纹管
1.Drawing rifled tubes with reversed-cone plug;倒锥形芯棒拉拔内螺纹管工艺的实验研究
2.Rib distortion during rifled tubes drawing is due to the excessive lateral Pressure or displacement.内螺纹管拉拔过程中内螺旋凸筋的畸变是由于已形成的凸筋侧壁在过大的侧向力或侧向 位移的作用下引起的,本文从理论上分析了内螺纹管产品几何尺寸和工艺参数对畸变的影响,并对 芯棒与凹模的轴向相对位置对内螺纹管拉拔成形质量的影响进行了研究。
5)internally ribbed tube内螺纹管
1.Design and optimization of air pre-heater with internally ribbed tube;内螺纹管空预器的设计和优化
2.The application of heat pipe and internally ribbed tube in air pre-heater;热管和内螺纹管在低温空气预热器中的应用
3.Study of enhanced heat transfer of single phase turbulent flow of kerosene in internally ribbed tube;内螺纹管中煤油单相紊流强化传热研究
6)rifled tube内螺纹管
延伸阅读

攻螺纹、套螺纹及其注意事项常用的在角螺纹工件,其螺纹除采用机械加工外,还可以用钳加工方法中的攻螺纹和套螺纹来获得。攻螺纹(亦称攻丝)是用丝锥在工件内圆柱面上加工出内螺纹;套螺纹(或称套丝、套扣)是用板牙在圆柱杆上加工外螺纹。 一、攻螺纹 1.丝锥及铰扛 (1)丝锥 丝锥是用来加工较小直径内螺纹的成形刀具,一般选用合金工具钢9SiGr制成,并经热处理制成。通常M6~M24的丝锥一套为两支,称头锥、二锥;M6以下及M24以上一套有三支、即头锥、二锥和三锥。 每个丝锥都有工作部分和柄部组成。工作部分是由切削部分和校准部分组成。轴向有几条(一般是三条或四条)容屑槽,相应地形成几瓣刀刃(切削刃)和前角。切削部分(即不完整的牙齿部分)是切削螺纹的重要部分,常磨成圆锥形,以便使切削负荷分配在几个刀齿上。头锥的锥角小些,有5~7个牙;二锥的锥角大些,有3~4个牙。校准部分具有完整的牙齿,用于修光螺纹和引导丝锥沿轴向运动。柄部有方头,其作用是与铰扛相配合并传递扭矩。 (2)铰扛 铰扛是用来夹持丝锥的工具,常用的是可调式铰扛。旋转手柄即可调节方孔的大小,以便夹持不同尺寸的丝锥。铰扛长度应根据丝锥尺寸大小进行选择,以便控制攻螺纹时的扭矩,防止丝锥因施力不当而扭断。 2.攻螺纹前钻底孔直径和深度的确定以及孔口的倒角 (1)底孔直径的确定